Related Experiment Video
Updated: Aug 9, 2026

Assessment of Vascular Regeneration in the CNS Using the Mouse Retina
Published on: June 23, 2014
Idiopathic retinal vasculitis, aneurysms, and neuro-retinitis. Retinal Vasculitis Study
T S Chang1, G W Aylward, J L Davis
1Bascom Palmer Eye Institute, Department of Ophthalmology, Miami, USA.
Idiopathic Retinal Vasculitis, Aneurysms, and Neuroretinitis (IRVAN) is a rare syndrome. Early identification of sight-threatening complications is crucial for managing this condition.
Area of Science:
- Ophthalmology
- Retinal Vascular Diseases
Background:
- Idiopathic Retinal Vasculitis, Aneurysms, and Neuroretinitis (IRVAN) is a rare syndrome.
- Characterized by retinal vasculitis, macroaneurysms, neuro-retinitis, and capillary nonperfusion.
Observation:
- Ten patients with IRVAN were evaluated.
- Clinical findings, fundus photography, fluorescein angiography, and systemic investigations were reviewed.
Findings:
- Seven eyes of four patients experienced significant vision loss (20/200 or worse).
- Visual loss resulted from exudative maculopathy and retinal ischemia.
- All patients had capillary nonperfusion; six required panretinal laser photocoagulation.
- Systemic investigations were non-contributory, and oral prednisone showed limited benefit.
Implications:
- Characteristic retinal features aid in IRVAN syndrome identification.
- Early detection of sight-threatening complications is vital.
- Extensive systemic investigations may not be beneficial for IRVAN patients.
More Related Videos
10:46Retinal Cryo-sections, Whole-Mounts, and Hypotonic Isolated Vasculature Preparations for Immunohistochemical Visualization of Microvascular Pericytes
Published on: October 7, 2018
12:28Quantification of Vascular Parameters in Whole Mount Retinas of Mice with Non-Proliferative and Proliferative Retinopathies
Published on: March 12, 2022